This is a bag for the Futon Dryer, specifically for dust mites. Manufacturer: HARASHIMA Model Number: DKA-98 ※The main unit is not for sale. This is only the bag that attaches to the futon dryer unit. I used it a few times, but I am selling it because I got rid of the main unit. The instruction manual is for the main unit, but I'm including it anyway. It has been stored at home for many years, so there are stains, yellowing, and folds. (Please comment if you don't need it.)